An Ebay purchase from Kooskia, Idaho.

The cabinet card is from the McManus Brothers studio. On the back in blue ink is "Agnes Hubbell" at the top and "Return to L. P. Pillell [Pillett?]" at the bottom.

Agnes Hubbell.

 I searched for Agnes Hubbell in Grand Traverse County in the US censuses. Only one, in the 1870 census, there was a three-year-old Agnes Hubbell, the daughter of  L. William and Eliza Hubbell (siblings Mary and Nellie). The family moved to Springfield, Greene County, Missouri. Agnes Fulton Hubbell died there on 7 May 1953 and was buried in Maple Park Cemetery. I do not know if this is the same individual